Geographic Information Systems

Locating Geospatial Data

A significant amount of geospatial data is generated by international, federal, state and local governments, and is available without cost. Major sources of free geospatial data include the U.S.G.S., the U.S. Census Bureau, and individual state governments. Commercial providers also supply a wealth of geographic data. These pages are designed to help you locate the data you need to support your GIS project.